It only cost me 180 for my dual setup, but its not flowmaster its a cheaper comp. Its mildly loud, but it has a nice rumble to it...Im happy for the price. http://www.xlerator.com/

 

I deceided to go with the Flowmaster one chamber race muffler and place a tip before my rear tire. So when driving my truck sets just high enuff to **** people off when I past them after they cut me off in traffic. Plan on getting a o2 simm her from Fastman.com and doing true duals. Got to love Kansas no cat checks. Just moved back from Texas where I had to remove my 2% tint